Control method for 3d printer for construction

Abstract

The present disclosure relates to a method of controlling a 3D printer for construction which prints and forms various structures, in which a controller 10 configured to control the 3D printer for construction, a scanner 30 configured to detect stereographic surface information, and a computer 40 connected to the controller 10 and the scanner 30 are provided so that the scanner 30 detects actually measured surface information 39 of a printing matter 20 and transmits the detected actually measured surface information 39 to the computer 40 , and the computer 40 compares the actually measured surface information 39 with planned surface information 49 to calculate a printing error and then corrects command information 19 such that the printing error is compensated for and transmits the corrected command information 19 to the controller 10 . Through the present disclosure, in forming a structure using the 3D printer for construction, an error of the printing matter 20 may be quickly identified in real time, and also a setting value of the controller 10 of the 3D printer for construction may be immediately adjusted based on the identified error.

1 . A method of controlling a three-dimensional (3D) printer for construction through a configuration in which the 3D printer for construction linearly extrudes and prints a fluid printing matter  20  from a nozzle  11  that moves, a controller  10  controls the 3D printer for construction, a scanner  30  detects surface information of a subject comprising spatial coordinates, and a computer  40  is connected to the controller  10  to transmit command information  19  to the controller  10  and is connected to the scanner  30  to receive the surface information transmitted from the scanner  30  and process the received surface information,
 the method comprising: 
 an actual measurement operation S 10  of detecting, by the scanner  30  of which a position is specified in advance to generate the spatial coordinates, the actually measured surface information  39  of the printing matter  20  printed from the 3D printer for construction and transmitting the detected actually measured surface information  39  to the computer  40 , wherein the actually measured surface information  39  comprises the spatial coordinates; 
 a comparison operation S 20  of comparing, by the computer  40 , the transmitted actually measured surface information  39  of the printing matter  20  with planned surface information  49  of a planned structure to calculate a printing error; 
 a correction operation S 31  of, when the printing error exceeds a tolerance, correcting, by the computer  40 , the command information  19  such that the printing error is compensated for, and deflecting a movement path of the nozzle  11  in the command information  19  or increasing or decreasing a movement speed of the nozzle  11  in the command information  19 ; and 
 a command operation S 32  of transmitting, by the computer  40 , the corrected command information  19  to the controller  10 .